Excitatory, Inhibitory, Summation

Question 1

Excitatory neurotransmitter

Answer 1

-When the excitatory neurotransmitter binds to the post synaptic receptors, the post synaptic cell becomes positively charged
-This makes it more likely the post synaptic cell will fire so an impulse will travel down its axon
-Increases brain activity in the CNS

Question 2

Excitatory neurotransmitters example

Answer 2

Adrenaline or dopamine

Question 3

Inhibitory neurotransmitter

Answer 3

-When the inhibitory neurotransmitter binds to the post synaptic receptors the post synaptic cell becomes negatively charged
-This reduces the likelihood that the post synaptic cell will fire
-This decreases brain activity in the CNS

Question 4

Inhibitory neurotransmitters example

Answer 4

Serotonin or GABA

Question 5

Summation

Answer 5

-When the excitatory and inhibitory influences are added together
-If the overall effect is mainly inhibitory/negatively charged this reduces the likelihood the neuron will fire an impulse down the post synaptic neuron
-If it is mainly excitatory/ positively charged the impulse will fire an impulse down the post synaptic neuron